BUG: unable to handle page fault for address: ffff887f9f28f7ff
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 8936 Comm: syz-executor136 Not tainted 5.5.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:is_multicast_ether_addr_64bits include/linux/etherdevice.h:135 [inline]
RIP: 0010:netif_receive_generic_xdp+0x566/0x11d0 net/core/dev.c:4565
Code: 74 08 48 89 df e8 ea bc 4b fb 4c 89 33 48 8b 9d 60 ff ff ff 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 2a bc 4b fb <48> 8b 33 83 e6 01 31 ff 48 89 b5 f0 fe ff ff e8 76 ad 0e fb 48 89
RSP: 0018:ffffc90000f77958 EFLAGS: 00010246
RAX: 1ffff10ff3e51eff RBX: ffff887f9f28f7ff RCX: 0000000000000100
RDX: ffff8880a47618b0 RSI: 0000000000000000 RDI: ffffc90000f77a88
RBP: ffffc90000f77a78 R08: ffffffff86682ee3 R09: ffffed1013e4ff5d
R10: ffffed1013e4ff5d R11: 0000000000000000 R12: ffff8880a4761908
R13: ffff8880a4761840 R14: ffff88809f27f800 R15: dffffc0000000000
FS:  000000000086f880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff887f9f28f7ff CR3: 000000008e245000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_xdp_generic+0x39/0x110 net/core/dev.c:4663
 tun_get_user+0x1d9d/0x3790 drivers/net/tun.c:1935
 tun_chr_write_iter+0xac/0x130 drivers/net/tun.c:2026
 do_iter_readv_writev+0x651/0x8e0 include/linux/fs.h:1895
 do_iter_write+0x180/0x590 fs/read_write.c:998
 vfs_writev fs/read_write.c:1071 [inline]
 do_writev+0x239/0x490 fs/read_write.c:1114
 __do_sys_writev fs/read_write.c:1187 [inline]
 __se_sys_writev fs/read_write.c:1184 [inline]
 __x64_sys_writev+0x7d/0x90 fs/read_write.c:1184
 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4420c0
Code: 05 48 3d 01 f0 ff ff 0f 83 5d 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 3d 51 8f 29 00 00 75 14 b8 14 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 34 09 fc ff c3 48 83 ec 08 e8 ba 2b 00 00
RSP: 002b:00007fffbff1f028 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007fffbff1f040 RCX: 00000000004420c0
RDX: 0000000000000001 RSI: 00007fffbff1f070 RDI: 00000000000000f0
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000004
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000001078a
R13: 0000000000402f10 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
CR2: ffff887f9f28f7ff
---[ end trace 1a71d07a2a1c44ac ]---
RIP: 0010:is_multicast_ether_addr_64bits include/linux/etherdevice.h:135 [inline]
RIP: 0010:netif_receive_generic_xdp+0x566/0x11d0 net/core/dev.c:4565
Code: 74 08 48 89 df e8 ea bc 4b fb 4c 89 33 48 8b 9d 60 ff ff ff 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 2a bc 4b fb <48> 8b 33 83 e6 01 31 ff 48 89 b5 f0 fe ff ff e8 76 ad 0e fb 48 89
RSP: 0018:ffffc90000f77958 EFLAGS: 00010246
RAX: 1ffff10ff3e51eff RBX: ffff887f9f28f7ff RCX: 0000000000000100
RDX: ffff8880a47618b0 RSI: 0000000000000000 RDI: ffffc90000f77a88
RBP: ffffc90000f77a78 R08: ffffffff86682ee3 R09: ffffed1013e4ff5d
R10: ffffed1013e4ff5d R11: 0000000000000000 R12: ffff8880a4761908
R13: ffff8880a4761840 R14: ffff88809f27f800 R15: dffffc0000000000
FS:  000000000086f880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff887f9f28f7ff CR3: 000000008e245000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400